package com.hethongviet.preventingmachine.helps.db;

import java.util.ArrayList;
import java.util.List;

import com.hethongviet.preventingmachine.Utils;
import com.hethongviet.preventingmachine.models.Sensor;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;

public class SensorSQLite
{
	public static final String TABLE_NAME = "sensors";

	public static final String COLUMN_ID_DB = "idDB";

	public static final String COLUMN_INDEX = "_index";
	public static final String COLUMN_NAME = "name";

	// Database fields
	private SQLiteDatabase _database;
	private MySQLiteHelper _dbHelper;
	private String[] _allColumns = { COLUMN_ID_DB,

	COLUMN_INDEX, COLUMN_NAME};

	public static final String STRING_COLUMNS = COLUMN_ID_DB
			+ " INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL UNIQUE, "

			+ COLUMN_INDEX + " integer, " + COLUMN_NAME + " text";

	public SensorSQLite(Context context, String databaseName)
	{
		List<String> tableNames = new ArrayList<String>();
		List<String> columnNames = new ArrayList<String>();

		tableNames.add(TABLE_NAME);
		columnNames.add(STRING_COLUMNS);

		tableNames.add(AccountSQLite.TABLE_NAME);
		columnNames.add(AccountSQLite.STRING_COLUMNS);

		tableNames.add(RelaySQLite.TABLE_NAME);
		columnNames.add(RelaySQLite.STRING_COLUMNS);
		
		tableNames.add(DeviceSQLite.TABLE_NAME);
		columnNames.add(DeviceSQLite.STRING_COLUMNS);

		tableNames.add(NumberSQLite.TABLE_NAME);
		columnNames.add(NumberSQLite.STRING_COLUMNS);
		
		tableNames.add(CameraSQLite.TABLE_NAME);
		columnNames.add(CameraSQLite.STRING_COLUMNS);

		tableNames.add(ClientSQLite.TABLE_NAME);
		columnNames.add(ClientSQLite.STRING_COLUMNS);
		
		_dbHelper = new MySQLiteHelper(context, tableNames, columnNames, databaseName);
	}

	public void open() throws SQLException
	{
		_database = _dbHelper.getWritableDatabase();
	}

	public void close()
	{
		_dbHelper.close();
	}

	private boolean dataExist(Sensor sensor, Cursor cursor)
	{
		if (cursor == null)
		{
			return false;
		}
		for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext())
		{
			long idDB = cursor.getLong(cursor.getColumnIndex(COLUMN_ID_DB));
			if (idDB == sensor.getIdDB()) return true;
		}
		return false;
	}

	/**
	 * @param sensor
	 * @return row id -1: insert fail
	 */
	public long insert(Sensor sensor)
	{
		Utils.debug("insert -- sensor : " + sensor.getName());
		open();

		Cursor cursor = _database.rawQuery("SELECT * FROM " + TABLE_NAME
				+ " WHERE " + COLUMN_ID_DB + " = " + sensor.getIdDB(), null);

		long temp = -1;
		if (!dataExist(sensor, cursor))
		{
			Utils.debug("insert 1111111111111 INSERT");
			/* Insert to database */
			/* Insert new */
			Cursor cursorInsert = _database.rawQuery("INSERT INTO "
					+ TABLE_NAME + "(" + COLUMN_INDEX + ", " + COLUMN_NAME
					+ ") values( ?, ?)",

					new String[] { sensor.getIndex() + "", sensor.getName()});

			cursorInsert.moveToFirst();
			if (!cursorInsert.isAfterLast()) temp = cursorInsert.getLong(cursorInsert.getColumnIndex(COLUMN_ID_DB));

			cursorInsert.close();
		}
		else
		{
			Utils.debug("insert 1111111111111 update");
			ContentValues contentValues = new ContentValues();
			contentValues.put(COLUMN_INDEX, sensor.getIndex());
			contentValues.put(COLUMN_NAME, sensor.getName());

			temp = _database.update(TABLE_NAME, contentValues, COLUMN_ID_DB
					+ " = " + sensor.getIdDB(), null);
		}
		cursor.close();
		close();
		return temp;
	}
	
	public void deleteAll()
	{
		open();

		System.out.println(TABLE_NAME + " deleted all");
		// _database.rawQuery("DELETE FROM " + TABLE_NAME, null); not work
		// _database.rawQuery("DELETE FROM " + TABLE_NAME + " WHERE 1", null);
		_database.delete(TABLE_NAME, "1", null);
		close();
	}

	public List<Sensor> getAll()
	{
		open();

		List<Sensor> listSensors = new ArrayList<Sensor>();

		Cursor cursor = _database.query(TABLE_NAME, _allColumns, null, null,
				null, null, null);
		cursor.moveToFirst();
		while (!cursor.isAfterLast())
		{
			Sensor sensor = cursorToSensor(cursor);
			listSensors.add(sensor);
			cursor.moveToNext();
		}
		// Make sure to close the cursor
		cursor.close();
		close();
		return listSensors;
	}

	private Sensor cursorToSensor(Cursor cursor)
	{
		Sensor sensor = new Sensor();
		sensor.setIdDB(cursor.getLong(cursor.getColumnIndex(COLUMN_ID_DB)));
		sensor.setIndex(cursor.getInt(cursor.getColumnIndex(COLUMN_INDEX)));
		sensor.setName(cursor.getString(cursor.getColumnIndex(COLUMN_NAME)));
		return sensor;
	}

	public final boolean isTableExist()
	{
		open();

		boolean isExist = false;
		Cursor cursor = _database.rawQuery(
				"select DISTINCT tbl_name from sqlite_master where tbl_name = '"
						+ TABLE_NAME + "'", null);
		isExist = cursor != null && cursor.getCount() > 0;

		cursor.close();
		close();

		return isExist;
	}
}
